Cita APA (7a ed.)
Ehui, S. K., Benin, S., Williams, T., & Meijer, S. (2002). Food security in sub-Saharan Africa to 2020. International Livestock Research Institute.
Cita Chicago Style (17a ed.)
Ehui, Simeon K., Samuel Benin, T. Williams, y S. Meijer. Food Security in Sub-Saharan Africa to 2020. International Livestock Research Institute, 2002.
Cita MLA (9a ed.)
Ehui, Simeon K., et al. Food Security in Sub-Saharan Africa to 2020. International Livestock Research Institute, 2002.
Precaución: Estas citas no son 100% exactas.